overboost help

black cat

black cat

New member
put my holset wh1-c turbo on 2weeks ago. along with my 3 in downpipe no cat , and a straight thru muffler it does have an internal waste gate that is off only one side of the twin scroll. it isn,t fully tuned yet but driveable.i have no tension on the waste gate actuator. it seems ok up to 2600 rpm 10 psi then it spikes and i let off. becuse it wants to go past 16. what are my options . external waste gate?
 
S

STAGEUP

Member
Re: overboost help

U don't need a cat. U just need good control of your Wastegate, and a good boost controller. What Wastegate are u using?
 
black cat

black cat

New member
Re: overboost help

the actuator is from the turbo i pulled off. it was a smaller turbo but it was an internal gate with twin scroll with the waste gate hole only on one side.without the boost controler i had 8-9 lbs right thru redline.i ,ve backed this gate off untill the gate is slightly open and it still wants to go over 15. i,ve checked the travell it all seems fine
 
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